Scanner Functions - Ricoh S-C3 F Service Manual

6. Detailed Section Descriptions
Duplex Printing
Duplex printing is available with all output bin options but not all paper sizes. If a job specifies duplex
printing but the paper size to be used cannot be used by the duplex unit, the job will be printed single-
sided.
• When the by-pass feeder is selected as the paper source, duplex printing is automatically disabled.

Scanner Functions

Image processing for scanner mode
The image processing for scanner mode is done in the IPU chip on the BICU board. The IPU chip chooses
the most suitable image processing methods (gamma tables, dither patterns, etc) depending on the settings
made in the driver.
The image compression method can be selected with SP mode (MR/MH/MMR for binary, gray scale or
full color picture processing).
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Image Data Path:
1. Image Store/Image Delivery Mode
The user can select the following modes from the LCD.
• Delivery only
After image processing and image compression, all image data for the job are stored in the printer
controller RAM using TIFF, PDF or JPEG file format (binary, gray scale or full color picture processing).
The type of file format used depends on the user's scanner settings.
When the delivery mode is selected, the controller creates a file which contains the destination and
page information, and then the controller sends the file to a server.
2. Twain Mode
After image processing and image compression, the data (binary, gray scale or full color picture of
TIFF, PDF or JPEG) is sent to the scanner Twain driver directory on the computer.
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